Mark Geralds was sentenced to death by the State of Florida for the murder of Tressa Pettibone
According to court documents Mark Geralds would break into the home of Tressa Pettibone. During the robbery she would be murdered
Mark Geralds was arrested, convicted and sentenced to death
Mark Geralds was executed on December 9 2025
Mark Geralds Photos
Mark Geralds Now
| DC Number: | 729185 |
|---|---|
| Name: | GERALDS, MARK |
| Race: | WHITE |
| Sex: | MALE |
| Birth Date: | 03/29/1967 |
| Initial Receipt Date: | 09/14/1990 |
| Current Facility: | UNION C.I. |
| Current Custody: | MAXIMUM |
| Current Release Date: | DEATH SENTENCE |
Mark Geralds Case
A death row inmate convicted of murdering a Panama City woman 20 years ago will stay in prison after the Florida Supreme Court ruled against him Thursday.
In a 61-page ruling, the court affirmed a Circuit Court ruling that denied a motion by Mark Geralds to vacate his conviction and death sentence and release him from prison.
Geralds was convicted in 1990 of entering the home of 33-year-old Tressa Pettibone, beating her unconscious, binding her hands and stabbing her three times in the throat. A jury recommended the death penalty.
In 1992, the Supreme Court upheld the conviction but ordered a new sentencing hearing. A new jury unanimously recommended the death penalty in 1993. Court records noted Geralds’ high IQ of 121 and his “superior ability to think in the abstract” were inconsistent with the notion that Geralds acted out of sudden rage.
The Supreme Court in 1996 unanimously denied Geralds’ request for a new hearing and affirmed the death sentence against him.
Geralds had been a carpenter and had worked on a remodeling job at the Pettibone home. He saw Tressa Pettibone at a mall with her two children a week before the murder. He found out Kevin Pettibone, Tressa’s husband, was out of town for several weeks, and he asked her children what time they left for and returned from school each day.
“Geralds carefully planned this crime,” the Supreme Court noted in 1992.
Geralds was 22 years old when Pettibone was killed. He is now 43. Calls to Geralds’ defense attorney were not returned.
According to Roger Maas with the Capital Collateral Regional Counsels, an office that monitors death penalty cases in the state, there are roughly 10 death sentences handed down each year statewide.
Capital cases automatically appeal to the Florida Supreme Court, but such cases are so complex that the court can only rule on two or three a year. Those two or three death penalty appeals take up about 50 percent of the Florida Supreme Court’s time, Maas said.
O.H. Eaton, an 18th Circuit Court Judge and the longtime head of faculty at the Florida College for Advanced Judicial Studies, teaches a course on how to handle capital cases at the State’s Judicial College and the National Judicial College in Reno, Nev. The course is mandatory for any judge who might deal with death penalty cases.
Eaton said Geralds’ appeal just passed the fifth step in what is typically a nine-step process. The next step would be an appeal to the U.S. Supreme Court, which is likely to be denied until the federal appeals process, which can take as long as federal judges deem necessary, has been exhausted and the case is fully developed.
“At any step in this process the case can get kicked back one or more steps,” Eaton said.
Since 1979, when the death penalty was reinstated in Florida, the average length of time a prisoner spends on death row is just under 13 years, according to the Department of Corrections. Before 1997, when the appeals system was reorganized, it often took as long as 20 years to execute a convict, Maas said.
There are currently about 50 death row inmates who’ve exhausted their appeals and are only waiting for a death warrant from the governor, Maas said. There were 391 death row inmates in Florida as of Sept. 17.
The prisoner most recently executed in Florida was Martin Grossman, who had been on death row more than 24 years before he was put to death Feb. 16.
Mark Geralds Execution
A man convicted of fatally stabbing a woman during a home invasion decades ago was executed Tuesday evening in Florida.
Mark Allen Geralds, 58, was pronounced dead at 6:15 pm following a three-drug injection at Florida State Prison for the February 1989 murder of Tressa Pettibone. The execution was the 18th in Florida this year, further extending the state record for total executions in a single year with one more planned next week.
Asked if he had any last words, Geralds addressed someone by name, but the name was inaudible. He said, “I’m sorry that I missed you.” He then added, “I loved you every day.”
Once the drugs began flowing, he took about a dozen deep breaths. His body then quivered and twitched, his mouth opening and closing. Within three or four minutes, Geralds became still.
Pettibone was attacked in her home on February 1, 1989. Later that day, Pettibone’s 8-year-old son arrived home from school and found his mother fatally stabbed on the kitchen floor of their Panama City home, according to court records. Geralds was a carpenter who had previously done remodeling work at the home about a year before.
About a week before the killing, Geralds ran into Pettibone and her two children at a shopping mall, and Pettibone mentioned that her husband was away on business. Later Geralds approached Pettibone’s son at the video arcade and asked when the boy’s father would return and what time he and his sister left for and returned from school each day, according to the records.
Investigators found that Geralds on the afternoon of the attack had pawned jewelry with traces of Pettibone’s blood on it, and plastic ties used to bind Pettibone matched ties found in Geralds’ car, the records showed.
Geralds was subsequently convicted of murder, armed robbery and other charges and sentenced to death in 1990. The Florida Supreme Court later vacated the sentence but affirmed the conviction, and Geralds was resentenced to death in 1992.
After a death warrant was signed last month and his execution date set, Geralds told a judge he did not wish to pursue any further appeals. The judge signed off on that decision.
Including Gerald’s execution, a total of 45 men have died by court-ordered execution so far this year in the US, with a handful of executions scheduled in what remains of the year.
Since the US Supreme Court restored the death penalty in 1976, the highest previous annual total of Florida executions was eight in 2014. Florida has executed more people than any other state this year. Another execution is planned next week in the state under death warrants signed by Republican Gov. Ron DeSantis.
Frank Athen Walls, 58, is scheduled for Florida’s 19th execution this year on December 18. He was convicted of fatally shooting a man and woman during a home invasion robbery and later confessing to three other killings.
Florida executions are by lethal injection using a sedative, a paralytic and a drug that stops the heart, according to the state Department of Corrections.
Florida Executes Man Convicted Of 1989 Murder, Marks 18th Death In 2025
